15.1 Exercise 29

The following concentrations are found in mixtures of ions in equilibrium with slightly soluble solids. From the concentrations given, calculate K_sp for each of the slightly soluble solids indicated:

(a) TlCl: [Tl⁺] = 1.21 $\times$ 10^–2 M, [Cl^–] = 1.2 $\times$ 10^–2 M

(b) Ce(IO₃)₄: [Ce⁴⁺] = 1.8 $\times$ 10^–4 M, $\left[\text{IO}_{3} ^{−}\right]$ = 2.6 $\times$ 10^–13 M

(c) Gd₂(SO₄)₃: [Gd³⁺] = 0.132 M, $\left[\text{SO}_{\text{4}} ^{\text{2}−}\right]$ = 0.198 M

(d) Ag₂SO₄: [Ag⁺] = 2.40 $\times$ 10^–2 M, $\left[\text{SO}_{\text{4}} ^{\text{2}−}\right]$ = 2.05 $\times$ 10^–2 M

(e) BaSO₄: [Ba²⁺] = 0.500 M, $\left[\text{SO}_{\text{4}} ^{\text{2}−}\right]$ = 2.16 $\times$ 10⁻¹⁰ M